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  • Imaging techniques based on the principles of nuclear magnetic resonance (NMR) are modern techniques for the study of chemical, biological and physical properties of substances. The most important are their applications in medical sciences. MR imaging of a specimen weighted with diffusion coefficients requires very accurate data on the time course of the gradient pulse. Diffusion coefficients are determined from the drop of the MR signal measured with and without the application of magnetic field gradiients. From the accuracy point of view, the defined course of gradients plays an important role in the computation of coefficients. A minimum rise and fall times, a defined magnitude of the excited gradient of the magnetic field and a symmetry of positive and negative pulses (zero integral of pulses of the same magnitude and opposite polarities) are required. To characterize the time course of gradient pulses or either polarity, simple methods of their measurement has been developed and experimentally t
  • Imaging techniques based on the principles of nuclear magnetic resonance (NMR) are modern techniques for the study of chemical, biological and physical properties of substances. The most important are their applications in medical sciences. MR imaging of a specimen weighted with diffusion coefficients requires very accurate data on the time course of the gradient pulse. Diffusion coefficients are determined from the drop of the MR signal measured with and without the application of magnetic field gradiients. From the accuracy point of view, the defined course of gradients plays an important role in the computation of coefficients. A minimum rise and fall times, a defined magnitude of the excited gradient of the magnetic field and a symmetry of positive and negative pulses (zero integral of pulses of the same magnitude and opposite polarities) are required. To characterize the time course of gradient pulses or either polarity, simple methods of their measurement has been developed and experimentally t (en)
  • Článek pojednává o nové metodě měření časových charakteristik gradientních polí v MR tomografii (cs)
Title
  • Measurements of Time Characteristics of the Gradient Magnetic Field
  • Measurements of Time Characteristics of the Gradient Magnetic Field (en)
  • Měření časových charakteristik gradientních magnetických polí (cs)
skos:prefLabel
  • Measurements of Time Characteristics of the Gradient Magnetic Field
  • Measurements of Time Characteristics of the Gradient Magnetic Field (en)
  • Měření časových charakteristik gradientních magnetických polí (cs)
skos:notation
  • RIV/00216305:26220/05:PU50996!RIV06-MSM-26220___
http://linked.open.../vavai/riv/strany
  • 1-4
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  • Z(MSM0021630516)
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  • 529293
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  • RIV/00216305:26220/05:PU50996
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  • NMR, MR, Gradient field, measurement. (en)
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  • [9F4E81596E97]
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  • Shangai
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  • Shanghai
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  • Proceedings of 27th Anual International Conference of
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  • Bartušek, Karel
  • Gescheidtová, Eva
  • Kubásek, Radek
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http://linked.open.../riv/zahajeniAkce
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number of pages
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  • IEEE
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  • 0-7803-8741-4
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  • 26220
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